<?php 

require_once('../a.php');
//require_once('3/4/file_does_not_exists.php');
include_once('3/4/file_does_not_exists.php');

echo '<br>', __FILE__ ,'<br>';


$b  = "World";
 

echo $a , $b , $c;
echo "<br>";
echo hello();//hello() is in a.php
